Indoor Temperature Control to Prevent Simultaneous Heating and Cooling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The concurrent operation of heating and air conditioning systems in indoor environmental spaces leads to wasteful energy expenditure due to conflicting temperature control, as the air conditioning system may operate to reduce temperature below the heating system's activation point, and vice versa, despite efforts to synchronize thermostats, which are often hindered by response time differences and manual overrides.
Innovation Solution
A method and apparatus that detect when the air conditioning system is in cooling mode and send an inhibit command to the heating system, using sensors to prevent heat introduction when cooling is occurring, allowing the heating system to operate only when necessary, without requiring electrical interconnection with the air conditioning control mechanism, and incorporating a display module for user alerts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the heating system operates to maintain temperature, then the environmental space is heated, but the air conditioning system may simultaneously operate to cool the space, causing energy wastage
Solution Approach 1:
The system uses temperature sensors to continuously monitor the environmental space temperature and feeds this information back to the control mechanism. When the temperature drops below the thermostat setting, the heating system is activated. When the temperature rises above the setting, the heating system is deactivated, preventing concurrent operation with air conditioning
Solution Approach 2:
A control mechanism acts as an intermediary between the temperature sensing system and the heating system. This intermediary processes temperature data and generates appropriate control signals to activate or deactivate the heating system, ensuring coordinated operation and preventing energy wastage
2Ease of operation
If separate thermostats are used for heating and air conditioning systems, then each system can be independently controlled, but response time differences and temperature location variations cause conflicting operations
Solution Approach 1:
The system merges the temperature sensing and control functions into a unified approach. Multiple temperature sensors are distributed throughout the environmental space to capture temperature variations at different locations. The control mechanism integrates this distributed temperature data to make coordinated control decisions, eliminating conflicts between separate thermostats while maintaining independent system control capabilities
3Ease of operation
If manual override facilities are provided for temperature selection, then occupants can adjust comfort levels, but this creates uncertainty in temperature control and may lead to simultaneous heating and cooling operation
Solution Approach 1:
The control mechanism dynamically adjusts its operation based on real-time temperature conditions and manual override inputs. When occupants activate manual override to increase heating, the system dynamically responds by modulating the heating system output. The control mechanism continuously monitors temperature and dynamically switches between automatic and manual control modes, maintaining reliable temperature control while accommodating occupant preferences
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution significantly reduces energy wastage by ensuring the heating system only operates when the air conditioning system is not in cooling mode, thereby optimizing energy use and preventing simultaneous operation of both systems, while being easily retrofittable to existing installations.
Implementation Method 1
Detecting the temperature of an exterior pipe exiting from the air conditioning compressor, or fluid within said pipe, and turning off the heating system when the detected temperature of the exit pipe is higher than a pre-selected temperature
Implementation Method 2
Detecting vibration of the circulation pump of a wet type heating system and turning off the heating system when a vibration sensor indicates that the pump is in operation to circulate fluid
Implementation Method 3
a heating system which introduces heat into an environmental space
Implementation Method 4
an air conditioning system which removes heat from an environmental space
Data Source
AI summary
A method and apparatus for control of the heating and air conditioning systems of an environmental space employs means to detect when an air conditioning system is in a cooling mode and to send an inhibit command to the heating system when the air conditioning system is in a cooling mode thereby to inhibit the heating system from providing heat into the environmental space.